DUK_EXTERNAL duk_int_t duk_get_magic(duk_context *ctx, duk_idx_t idx) { duk_hthread *thr = (duk_hthread *) ctx; duk_tval *tv; duk_hobject *h; DUK_ASSERT_CTX_VALID(ctx); tv = duk_require_tval(ctx, idx); if (DUK_TVAL_IS_OBJECT(tv)) { h = DUK_TVAL_GET_OBJECT(tv); DUK_ASSERT(h != NULL); if (!DUK_HOBJECT_HAS_NATFUNC(h)) { goto type_error; } return (duk_int_t) ((duk_hnatfunc *) h)->magic; } else if (DUK_TVAL_IS_LIGHTFUNC(tv)) { duk_small_uint_t lf_flags = DUK_TVAL_GET_LIGHTFUNC_FLAGS(tv); return (duk_int_t) DUK_LFUNC_FLAGS_GET_MAGIC(lf_flags); } /* fall through */ type_error: DUK_ERROR_TYPE(thr, DUK_STR_UNEXPECTED_TYPE); return 0; }
DUK_LOCAL void duk__refcount_run_torture_finalizer(duk_hthread *thr, duk_hobject *obj) { duk_context *ctx; duk_int_t rc; DUK_ASSERT(thr != NULL); DUK_ASSERT(obj != NULL); ctx = (duk_context *) thr; /* Avoid fake finalization for the duk__refcount_fake_finalizer function * itself, otherwise we're in infinite recursion. */ if (DUK_HOBJECT_HAS_NATFUNC(obj)) { if (((duk_hnatfunc *) obj)->func == duk__refcount_fake_finalizer) { DUK_DD(DUK_DDPRINT("avoid fake torture finalizer for duk__refcount_fake_finalizer itself")); return; } } /* Avoid fake finalization when callstack limit has been reached. * Otherwise a callstack limit error will be created, then refzero'ed, * and we're in an infinite loop. */ if (thr->heap->call_recursion_depth >= thr->heap->call_recursion_limit || thr->callstack_size + 2 * DUK_CALLSTACK_GROW_STEP >= thr->callstack_max /*approximate*/) { DUK_D(DUK_DPRINT("call recursion depth reached, avoid fake torture finalizer")); return; } /* Run fake finalizer. Avoid creating new refzero queue entries * so that we are not forced into a forever loop. */ duk_push_c_function(ctx, duk__refcount_fake_finalizer, 1 /*nargs*/); duk_push_hobject(ctx, obj); rc = duk_pcall(ctx, 1); DUK_UNREF(rc); /* ignored */ duk_pop(ctx); }
DUK_LOCAL duk_ret_t duk__error_getter_helper(duk_context *ctx, duk_small_int_t output_type) { duk_hthread *thr = (duk_hthread *) ctx; duk_idx_t idx_td; duk_small_int_t i; /* traceback depth fits into 16 bits */ duk_small_int_t t; /* stack type fits into 16 bits */ duk_small_int_t count_func = 0; /* traceback depth ensures fits into 16 bits */ const char *str_tailcall = " tailcall"; const char *str_strict = " strict"; const char *str_construct = " construct"; const char *str_prevyield = " preventsyield"; const char *str_directeval = " directeval"; const char *str_empty = ""; DUK_ASSERT_TOP(ctx, 0); /* fixed arg count */ DUK_UNREF(thr); duk_push_this(ctx); duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_TRACEDATA); idx_td = duk_get_top_index(ctx); duk_push_hstring_stridx(ctx, DUK_STRIDX_NEWLINE_4SPACE); duk_push_this(ctx); /* [ ... this tracedata sep this ] */ /* XXX: skip null filename? */ if (duk_check_type(ctx, idx_td, DUK_TYPE_OBJECT)) { /* Current tracedata contains 2 entries per callstack entry. */ for (i = 0; ; i += 2) { duk_int_t pc; duk_int_t line; duk_int_t flags; duk_double_t d; const char *funcname; const char *filename; duk_hobject *h_func; duk_hstring *h_name; duk_require_stack(ctx, 5); duk_get_prop_index(ctx, idx_td, i); duk_get_prop_index(ctx, idx_td, i + 1); d = duk_to_number(ctx, -1); pc = (duk_int_t) DUK_FMOD(d, DUK_DOUBLE_2TO32); flags = (duk_int_t) DUK_FLOOR(d / DUK_DOUBLE_2TO32); t = (duk_small_int_t) duk_get_type(ctx, -2); if (t == DUK_TYPE_OBJECT || t == DUK_TYPE_LIGHTFUNC) { /* * Ecmascript/native function call or lightfunc call */ count_func++; /* [ ... v1(func) v2(pc+flags) ] */ h_func = duk_get_hobject(ctx, -2); /* NULL for lightfunc */ duk_get_prop_stridx(ctx, -2, DUK_STRIDX_NAME); duk_get_prop_stridx(ctx, -3, DUK_STRIDX_FILE_NAME); #if defined(DUK_USE_PC2LINE) line = duk_hobject_pc2line_query(ctx, -4, (duk_uint_fast32_t) pc); #else line = 0; #endif /* [ ... v1 v2 name filename ] */ /* When looking for .fileName/.lineNumber, blame first * function which has a .fileName. */ if (duk_is_string(ctx, -1)) { if (output_type == DUK__OUTPUT_TYPE_FILENAME) { return 1; } else if (output_type == DUK__OUTPUT_TYPE_LINENUMBER) { duk_push_int(ctx, line); return 1; } } /* XXX: Change 'anon' handling here too, to use empty string for anonymous functions? */ /* XXX: Could be improved by coercing to a readable duk_tval (especially string escaping) */ h_name = duk_get_hstring(ctx, -2); /* may be NULL */ funcname = (h_name == NULL || h_name == DUK_HTHREAD_STRING_EMPTY_STRING(thr)) ? "[anon]" : (const char *) DUK_HSTRING_GET_DATA(h_name); filename = duk_get_string(ctx, -1); filename = filename ? filename : ""; DUK_ASSERT(funcname != NULL); DUK_ASSERT(filename != NULL); if (h_func == NULL) { duk_push_sprintf(ctx, "at %s light%s%s%s%s%s", (const char *) funcname, (const char *) ((flags & DUK_ACT_FLAG_STRICT) ? str_strict : str_empty), (const char *) ((flags & DUK_ACT_FLAG_TAILCALLED) ? str_tailcall : str_empty), (const char *) ((flags & DUK_ACT_FLAG_CONSTRUCT) ? str_construct : str_empty), (const char *) ((flags & DUK_ACT_FLAG_DIRECT_EVAL) ? str_directeval : str_empty), (const char *) ((flags & DUK_ACT_FLAG_PREVENT_YIELD) ? str_prevyield : str_empty)); } else if (DUK_HOBJECT_HAS_NATFUNC(h_func)) { duk_push_sprintf(ctx, "at %s (%s) native%s%s%s%s%s", (const char *) funcname, (const char *) filename, (const char *) ((flags & DUK_ACT_FLAG_STRICT) ? str_strict : str_empty), (const char *) ((flags & DUK_ACT_FLAG_TAILCALLED) ? str_tailcall : str_empty), (const char *) ((flags & DUK_ACT_FLAG_CONSTRUCT) ? str_construct : str_empty), (const char *) ((flags & DUK_ACT_FLAG_DIRECT_EVAL) ? str_directeval : str_empty), (const char *) ((flags & DUK_ACT_FLAG_PREVENT_YIELD) ? str_prevyield : str_empty)); } else { duk_push_sprintf(ctx, "at %s (%s:%ld)%s%s%s%s%s", (const char *) funcname, (const char *) filename, (long) line, (const char *) ((flags & DUK_ACT_FLAG_STRICT) ? str_strict : str_empty), (const char *) ((flags & DUK_ACT_FLAG_TAILCALLED) ? str_tailcall : str_empty), (const char *) ((flags & DUK_ACT_FLAG_CONSTRUCT) ? str_construct : str_empty), (const char *) ((flags & DUK_ACT_FLAG_DIRECT_EVAL) ? str_directeval : str_empty), (const char *) ((flags & DUK_ACT_FLAG_PREVENT_YIELD) ? str_prevyield : str_empty)); } duk_replace(ctx, -5); /* [ ... v1 v2 name filename str ] -> [ ... str v2 name filename ] */ duk_pop_n(ctx, 3); /* -> [ ... str ] */ } else if (t == DUK_TYPE_STRING) { /* * __FILE__ / __LINE__ entry, here 'pc' is line number directly. * Sometimes __FILE__ / __LINE__ is reported as the source for * the error (fileName, lineNumber), sometimes not. */ /* [ ... v1(filename) v2(line+flags) ] */ /* When looking for .fileName/.lineNumber, blame compilation * or C call site unless flagged not to do so. */ if (!(flags & DUK_TB_FLAG_NOBLAME_FILELINE)) { if (output_type == DUK__OUTPUT_TYPE_FILENAME) { duk_pop(ctx); return 1; } else if (output_type == DUK__OUTPUT_TYPE_LINENUMBER) { duk_push_int(ctx, pc); return 1; } } duk_push_sprintf(ctx, "at [anon] (%s:%ld) internal", (const char *) duk_get_string(ctx, -2), (long) pc); duk_replace(ctx, -3); /* [ ... v1 v2 str ] -> [ ... str v2 ] */ duk_pop(ctx); /* -> [ ... str ] */ } else { /* unknown, ignore */ duk_pop_2(ctx); break; } } if (count_func >= DUK_USE_TRACEBACK_DEPTH) { /* Possibly truncated; there is no explicit truncation * marker so this is the best we can do. */ duk_push_hstring_stridx(ctx, DUK_STRIDX_BRACKETED_ELLIPSIS); } } /* [ ... this tracedata sep this str1 ... strN ] */ if (output_type != DUK__OUTPUT_TYPE_TRACEBACK) { return 0; } else { /* The 'this' after 'sep' will get ToString() coerced by * duk_join() automatically. We don't want to do that * coercion when providing .fileName or .lineNumber (GH-254). */ duk_join(ctx, duk_get_top(ctx) - (idx_td + 2) /*count, not including sep*/); return 1; } }
DUK_INTERNAL void duk_hthread_create_builtin_objects(duk_hthread *thr) { duk_context *ctx = (duk_context *) thr; duk_bitdecoder_ctx bd_ctx; duk_bitdecoder_ctx *bd = &bd_ctx; /* convenience */ duk_hobject *h; duk_small_uint_t i, j; DUK_D(DUK_DPRINT("INITBUILTINS BEGIN: DUK_NUM_BUILTINS=%d, DUK_NUM_BUILTINS_ALL=%d", (int) DUK_NUM_BUILTINS, (int) DUK_NUM_ALL_BUILTINS)); DUK_MEMZERO(&bd_ctx, sizeof(bd_ctx)); bd->data = (const duk_uint8_t *) duk_builtins_data; bd->length = (duk_size_t) DUK_BUILTINS_DATA_LENGTH; /* * First create all built-in bare objects on the empty valstack. * * Built-ins in the index range [0,DUK_NUM_BUILTINS-1] have value * stack indices matching their eventual thr->builtins[] index. * * Built-ins in the index range [DUK_NUM_BUILTINS,DUK_NUM_ALL_BUILTINS] * will exist on the value stack during init but won't be placed * into thr->builtins[]. These are objects referenced in some way * from thr->builtins[] roots but which don't need to be indexed by * Duktape through thr->builtins[] (e.g. user custom objects). */ duk_require_stack(ctx, DUK_NUM_ALL_BUILTINS); DUK_DD(DUK_DDPRINT("create empty built-ins")); DUK_ASSERT_TOP(ctx, 0); for (i = 0; i < DUK_NUM_ALL_BUILTINS; i++) { duk_small_uint_t class_num; duk_small_int_t len = -1; /* must be signed */ class_num = (duk_small_uint_t) duk_bd_decode(bd, DUK__CLASS_BITS); len = (duk_small_int_t) duk_bd_decode_flagged(bd, DUK__LENGTH_PROP_BITS, (duk_int32_t) -1 /*def_value*/); if (class_num == DUK_HOBJECT_CLASS_FUNCTION) { duk_small_uint_t natidx; duk_int_t c_nargs; /* must hold DUK_VARARGS */ duk_c_function c_func; duk_int16_t magic; DUK_DDD(DUK_DDDPRINT("len=%ld", (long) len)); DUK_ASSERT(len >= 0); natidx = (duk_small_uint_t) duk_bd_decode(bd, DUK__NATIDX_BITS); c_func = duk_bi_native_functions[natidx]; c_nargs = (duk_small_uint_t) duk_bd_decode_flagged(bd, DUK__NARGS_BITS, len /*def_value*/); if (c_nargs == DUK__NARGS_VARARGS_MARKER) { c_nargs = DUK_VARARGS; } /* XXX: set magic directly here? (it could share the c_nargs arg) */ duk_push_c_function_noexotic(ctx, c_func, c_nargs); h = duk_require_hobject(ctx, -1); DUK_ASSERT(h != NULL); /* Currently all built-in native functions are strict. * duk_push_c_function() now sets strict flag, so * assert for it. */ DUK_ASSERT(DUK_HOBJECT_HAS_STRICT(h)); /* XXX: function properties */ /* Built-in 'name' is not writable by default. Function '.name' * is writable to allow user code to set a '.name' on a native * function. */ duk__push_stridx_or_string(ctx, bd); duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_NAME, (i == DUK_BIDX_FUNCTION_PROTOTYPE) ? DUK_PROPDESC_FLAGS_W : DUK_PROPDESC_FLAGS_NONE); /* Almost all global level Function objects are constructable * but not all: Function.prototype is a non-constructable, * callable Function. */ if (duk_bd_decode_flag(bd)) { DUK_ASSERT(DUK_HOBJECT_HAS_CONSTRUCTABLE(h)); } else { DUK_HOBJECT_CLEAR_CONSTRUCTABLE(h); } /* Cast converts magic to 16-bit signed value */ magic = (duk_int16_t) duk_bd_decode_flagged(bd, DUK__MAGIC_BITS, 0 /*def_value*/); ((duk_hnatfunc *) h)->magic = magic; } else if (class_num == DUK_HOBJECT_CLASS_ARRAY) { duk_push_array(ctx); } else { duk_push_object_helper(ctx, DUK_HOBJECT_FLAG_EXTENSIBLE, -1); /* no prototype or class yet */ } h = duk_require_hobject(ctx, -1); DUK_ASSERT(h != NULL); DUK_HOBJECT_SET_CLASS_NUMBER(h, class_num); if (i < DUK_NUM_BUILTINS) { thr->builtins[i] = h; DUK_HOBJECT_INCREF(thr, &h->hdr); } if (len >= 0) { /* * For top-level objects, 'length' property has the following * default attributes: non-writable, non-enumerable, non-configurable * (E5 Section 15). * * However, 'length' property for Array.prototype has attributes * expected of an Array instance which are different: writable, * non-enumerable, non-configurable (E5 Section 15.4.5.2). * * Because Array .length is virtual, it's not encoded in the init * data separately. */ DUK_ASSERT(class_num != DUK_HOBJECT_CLASS_ARRAY); /* .length is virtual */ duk_push_int(ctx, len); duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_NONE); } /* enable exotic behaviors last */ if (class_num == DUK_HOBJECT_CLASS_ARRAY) { DUK_ASSERT(DUK_HOBJECT_HAS_EXOTIC_ARRAY(h)); /* set by duk_push_array() */ } if (class_num == DUK_HOBJECT_CLASS_STRING) { DUK_HOBJECT_SET_EXOTIC_STRINGOBJ(h); } /* some assertions */ DUK_ASSERT(DUK_HOBJECT_HAS_EXTENSIBLE(h)); /* DUK_HOBJECT_FLAG_CONSTRUCTABLE varies */ DUK_ASSERT(!DUK_HOBJECT_HAS_BOUNDFUNC(h)); DUK_ASSERT(!DUK_HOBJECT_HAS_COMPFUNC(h)); /* DUK_HOBJECT_FLAG_NATFUNC varies */ DUK_ASSERT(!DUK_HOBJECT_HAS_THREAD(h)); DUK_ASSERT(!DUK_HOBJECT_HAS_ARRAY_PART(h) || class_num == DUK_HOBJECT_CLASS_ARRAY); /* DUK_HOBJECT_FLAG_STRICT varies */ DUK_ASSERT(!DUK_HOBJECT_HAS_NATFUNC(h) || /* all native functions have NEWENV */ DUK_HOBJECT_HAS_NEWENV(h)); DUK_ASSERT(!DUK_HOBJECT_HAS_NAMEBINDING(h)); DUK_ASSERT(!DUK_HOBJECT_HAS_CREATEARGS(h)); DUK_ASSERT(!DUK_HOBJECT_HAS_ENVRECCLOSED(h)); /* DUK_HOBJECT_FLAG_EXOTIC_ARRAY varies */ /* DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ varies */ DUK_ASSERT(!DUK_HOBJECT_HAS_EXOTIC_ARGUMENTS(h)); DUK_DDD(DUK_DDDPRINT("created built-in %ld, class=%ld, length=%ld", (long) i, (long) class_num, (long) len)); } /* * Then decode the builtins init data (see genbuiltins.py) to * init objects */ DUK_DD(DUK_DDPRINT("initialize built-in object properties")); for (i = 0; i < DUK_NUM_ALL_BUILTINS; i++) { duk_small_uint_t t; duk_small_uint_t num; DUK_DDD(DUK_DDDPRINT("initializing built-in object at index %ld", (long) i)); h = duk_require_hobject(ctx, i); DUK_ASSERT(h != NULL); t = (duk_small_uint_t) duk_bd_decode(bd, DUK__BIDX_BITS); if (t != DUK__NO_BIDX_MARKER) { DUK_DDD(DUK_DDDPRINT("set internal prototype: built-in %ld", (long) t)); DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, h, duk_require_hobject(ctx, t)); } t = (duk_small_uint_t) duk_bd_decode(bd, DUK__BIDX_BITS); if (t != DUK__NO_BIDX_MARKER) { /* 'prototype' property for all built-in objects (which have it) has attributes: * [[Writable]] = false, * [[Enumerable]] = false, * [[Configurable]] = false */ DUK_DDD(DUK_DDDPRINT("set external prototype: built-in %ld", (long) t)); duk_xdef_prop_stridx_builtin(ctx, i, DUK_STRIDX_PROTOTYPE, t, DUK_PROPDESC_FLAGS_NONE); } t = (duk_small_uint_t) duk_bd_decode(bd, DUK__BIDX_BITS); if (t != DUK__NO_BIDX_MARKER) { /* 'constructor' property for all built-in objects (which have it) has attributes: * [[Writable]] = true, * [[Enumerable]] = false, * [[Configurable]] = true */ DUK_DDD(DUK_DDDPRINT("set external constructor: built-in %ld", (long) t)); duk_xdef_prop_stridx_builtin(ctx, i, DUK_STRIDX_CONSTRUCTOR, t, DUK_PROPDESC_FLAGS_WC); } /* normal valued properties */ num = (duk_small_uint_t) duk_bd_decode(bd, DUK__NUM_NORMAL_PROPS_BITS); DUK_DDD(DUK_DDDPRINT("built-in object %ld, %ld normal valued properties", (long) i, (long) num)); for (j = 0; j < num; j++) { duk_small_uint_t prop_flags; duk__push_stridx_or_string(ctx, bd); /* * Property attribute defaults are defined in E5 Section 15 (first * few pages); there is a default for all properties and a special * default for 'length' properties. Variation from the defaults is * signaled using a single flag bit in the bitstream. */ if (duk_bd_decode_flag(bd)) { prop_flags = (duk_small_uint_t) duk_bd_decode(bd, DUK__PROP_FLAGS_BITS); } else { prop_flags = DUK_PROPDESC_FLAGS_WC; } t = (duk_small_uint_t) duk_bd_decode(bd, DUK__PROP_TYPE_BITS); DUK_DDD(DUK_DDDPRINT("built-in %ld, normal-valued property %ld, key %!T, flags 0x%02lx, type %ld", (long) i, (long) j, duk_get_tval(ctx, -1), (unsigned long) prop_flags, (long) t)); switch (t) { case DUK__PROP_TYPE_DOUBLE: { duk__push_double(ctx, bd); break; } case DUK__PROP_TYPE_STRING: { duk__push_string(ctx, bd); break; } case DUK__PROP_TYPE_STRIDX: { duk__push_stridx(ctx, bd); break; } case DUK__PROP_TYPE_BUILTIN: { duk_small_uint_t bidx; bidx = (duk_small_uint_t) duk_bd_decode(bd, DUK__BIDX_BITS); DUK_ASSERT(bidx != DUK__NO_BIDX_MARKER); duk_dup(ctx, (duk_idx_t) bidx); break; } case DUK__PROP_TYPE_UNDEFINED: { duk_push_undefined(ctx); break; } case DUK__PROP_TYPE_BOOLEAN_TRUE: { duk_push_true(ctx); break; } case DUK__PROP_TYPE_BOOLEAN_FALSE: { duk_push_false(ctx); break; } case DUK__PROP_TYPE_ACCESSOR: { duk_small_uint_t natidx_getter = (duk_small_uint_t) duk_bd_decode(bd, DUK__NATIDX_BITS); duk_small_uint_t natidx_setter = (duk_small_uint_t) duk_bd_decode(bd, DUK__NATIDX_BITS); duk_c_function c_func_getter; duk_c_function c_func_setter; /* XXX: this is a bit awkward because there is no exposed helper * in the API style, only this internal helper. */ DUK_DDD(DUK_DDDPRINT("built-in accessor property: objidx=%ld, key=%!T, getteridx=%ld, setteridx=%ld, flags=0x%04lx", (long) i, duk_get_tval(ctx, -1), (long) natidx_getter, (long) natidx_setter, (unsigned long) prop_flags)); c_func_getter = duk_bi_native_functions[natidx_getter]; c_func_setter = duk_bi_native_functions[natidx_setter]; duk_push_c_function_noconstruct_noexotic(ctx, c_func_getter, 0); /* always 0 args */ duk_push_c_function_noconstruct_noexotic(ctx, c_func_setter, 1); /* always 1 arg */ /* XXX: magic for getter/setter? use duk_def_prop()? */ DUK_ASSERT((prop_flags & DUK_PROPDESC_FLAG_WRITABLE) == 0); /* genbuiltins.py ensures */ prop_flags |= DUK_PROPDESC_FLAG_ACCESSOR; /* accessor flag not encoded explicitly */ duk_hobject_define_accessor_internal(thr, duk_require_hobject(ctx, i), duk_get_hstring(ctx, -3), duk_require_hobject(ctx, -2), duk_require_hobject(ctx, -1), prop_flags); duk_pop_3(ctx); /* key, getter and setter, now reachable through object */ goto skip_value; } default: { /* exhaustive */ DUK_UNREACHABLE(); } } DUK_ASSERT((prop_flags & DUK_PROPDESC_FLAG_ACCESSOR) == 0); duk_xdef_prop(ctx, i, prop_flags); skip_value: continue; /* avoid empty label at the end of a compound statement */ } /* native function properties */ num = (duk_small_uint_t) duk_bd_decode(bd, DUK__NUM_FUNC_PROPS_BITS); DUK_DDD(DUK_DDDPRINT("built-in object %ld, %ld function valued properties", (long) i, (long) num)); for (j = 0; j < num; j++) { duk_hstring *h_key; duk_small_uint_t natidx; duk_int_t c_nargs; /* must hold DUK_VARARGS */ duk_small_uint_t c_length; duk_int16_t magic; duk_c_function c_func; duk_hnatfunc *h_func; #if defined(DUK_USE_LIGHTFUNC_BUILTINS) duk_small_int_t lightfunc_eligible; #endif duk__push_stridx_or_string(ctx, bd); h_key = duk_get_hstring(ctx, -1); DUK_ASSERT(h_key != NULL); DUK_UNREF(h_key); natidx = (duk_small_uint_t) duk_bd_decode(bd, DUK__NATIDX_BITS); c_length = (duk_small_uint_t) duk_bd_decode(bd, DUK__LENGTH_PROP_BITS); c_nargs = (duk_int_t) duk_bd_decode_flagged(bd, DUK__NARGS_BITS, (duk_int32_t) c_length /*def_value*/); if (c_nargs == DUK__NARGS_VARARGS_MARKER) { c_nargs = DUK_VARARGS; } c_func = duk_bi_native_functions[natidx]; DUK_DDD(DUK_DDDPRINT("built-in %ld, function-valued property %ld, key %!O, natidx %ld, length %ld, nargs %ld", (long) i, (long) j, (duk_heaphdr *) h_key, (long) natidx, (long) c_length, (c_nargs == DUK_VARARGS ? (long) -1 : (long) c_nargs))); /* Cast converts magic to 16-bit signed value */ magic = (duk_int16_t) duk_bd_decode_flagged(bd, DUK__MAGIC_BITS, 0); #if defined(DUK_USE_LIGHTFUNC_BUILTINS) lightfunc_eligible = ((c_nargs >= DUK_LFUNC_NARGS_MIN && c_nargs <= DUK_LFUNC_NARGS_MAX) || (c_nargs == DUK_VARARGS)) && (c_length <= DUK_LFUNC_LENGTH_MAX) && (magic >= DUK_LFUNC_MAGIC_MIN && magic <= DUK_LFUNC_MAGIC_MAX); if (h_key == DUK_HTHREAD_STRING_EVAL(thr) || h_key == DUK_HTHREAD_STRING_YIELD(thr) || h_key == DUK_HTHREAD_STRING_RESUME(thr)) { /* These functions have trouble working as lightfuncs. * Some of them have specific asserts and some may have * additional properties (e.g. 'require.id' may be written). */ DUK_D(DUK_DPRINT("reject as lightfunc: key=%!O, i=%d, j=%d", (duk_heaphdr *) h_key, (int) i, (int) j)); lightfunc_eligible = 0; } if (lightfunc_eligible) { duk_tval tv_lfunc; duk_small_uint_t lf_nargs = (c_nargs == DUK_VARARGS ? DUK_LFUNC_NARGS_VARARGS : c_nargs); duk_small_uint_t lf_flags = DUK_LFUNC_FLAGS_PACK(magic, c_length, lf_nargs); DUK_TVAL_SET_LIGHTFUNC(&tv_lfunc, c_func, lf_flags); duk_push_tval(ctx, &tv_lfunc); DUK_D(DUK_DPRINT("built-in function eligible as light function: i=%d, j=%d c_length=%ld, c_nargs=%ld, magic=%ld -> %!iT", (int) i, (int) j, (long) c_length, (long) c_nargs, (long) magic, duk_get_tval(ctx, -1))); goto lightfunc_skip; } DUK_D(DUK_DPRINT("built-in function NOT ELIGIBLE as light function: i=%d, j=%d c_length=%ld, c_nargs=%ld, magic=%ld", (int) i, (int) j, (long) c_length, (long) c_nargs, (long) magic)); #endif /* DUK_USE_LIGHTFUNC_BUILTINS */ /* [ (builtin objects) name ] */ duk_push_c_function_noconstruct_noexotic(ctx, c_func, c_nargs); h_func = duk_require_hnatfunc(ctx, -1); DUK_UNREF(h_func); /* Currently all built-in native functions are strict. * This doesn't matter for many functions, but e.g. * String.prototype.charAt (and other string functions) * rely on being strict so that their 'this' binding is * not automatically coerced. */ DUK_HOBJECT_SET_STRICT((duk_hobject *) h_func); /* No built-in functions are constructable except the top * level ones (Number, etc). */ DUK_ASSERT(!DUK_HOBJECT_HAS_CONSTRUCTABLE((duk_hobject *) h_func)); /* XXX: any way to avoid decoding magic bit; there are quite * many function properties and relatively few with magic values. */ h_func->magic = magic; /* [ (builtin objects) name func ] */ duk_push_int(ctx, c_length); duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_NONE); duk_dup(ctx, -2); duk_xdef_prop_stridx(ctx, -2, DUK_STRIDX_NAME, DUK_PROPDESC_FLAGS_NONE); /* XXX: other properties of function instances; 'arguments', 'caller'. */ DUK_DD(DUK_DDPRINT("built-in object %ld, function property %ld -> %!T", (long) i, (long) j, (duk_tval *) duk_get_tval(ctx, -1))); /* [ (builtin objects) name func ] */ /* * The default property attributes are correct for all * function valued properties of built-in objects now. */ #if defined(DUK_USE_LIGHTFUNC_BUILTINS) lightfunc_skip: #endif duk_xdef_prop(ctx, i, DUK_PROPDESC_FLAGS_WC); /* [ (builtin objects) ] */ } } /* * Special post-tweaks, for cases not covered by the init data format. * * - Set Date.prototype.toGMTString to Date.prototype.toUTCString. * toGMTString is required to have the same Function object as * toUTCString in E5 Section B.2.6. Note that while Smjs respects * this, V8 does not (the Function objects are distinct). * * - Make DoubleError non-extensible. * * - Add info about most important effective compile options to Duktape. * * - Possibly remove some properties (values or methods) which are not * desirable with current feature options but are not currently * conditional in init data. */ duk_get_prop_stridx(ctx, DUK_BIDX_DATE_PROTOTYPE, DUK_STRIDX_TO_UTC_STRING); duk_xdef_prop_stridx(ctx, DUK_BIDX_DATE_PROTOTYPE, DUK_STRIDX_TO_GMT_STRING, DUK_PROPDESC_FLAGS_WC); h = duk_require_hobject(ctx, DUK_BIDX_DOUBLE_ERROR); DUK_ASSERT(h != NULL); DUK_HOBJECT_CLEAR_EXTENSIBLE(h); #if !defined(DUK_USE_ES6_OBJECT_PROTO_PROPERTY) DUK_DD(DUK_DDPRINT("delete Object.prototype.__proto__ built-in which is not enabled in features")); (void) duk_hobject_delprop_raw(thr, thr->builtins[DUK_BIDX_OBJECT_PROTOTYPE], DUK_HTHREAD_STRING___PROTO__(thr), DUK_DELPROP_FLAG_THROW); #endif #if !defined(DUK_USE_ES6_OBJECT_SETPROTOTYPEOF) DUK_DD(DUK_DDPRINT("delete Object.setPrototypeOf built-in which is not enabled in features")); (void) duk_hobject_delprop_raw(thr, thr->builtins[DUK_BIDX_OBJECT_CONSTRUCTOR], DUK_HTHREAD_STRING_SET_PROTOTYPE_OF(thr), DUK_DELPROP_FLAG_THROW); #endif /* XXX: relocate */ duk_push_string(ctx, /* Endianness indicator */ #if defined(DUK_USE_INTEGER_LE) "l" #elif defined(DUK_USE_INTEGER_BE) "b" #elif defined(DUK_USE_INTEGER_ME) /* integer mixed endian not really used now */ "m" #else "?" #endif #if defined(DUK_USE_DOUBLE_LE) "l" #elif defined(DUK_USE_DOUBLE_BE) "b" #elif defined(DUK_USE_DOUBLE_ME) "m" #else "?" #endif " " /* Packed or unpacked tval */ #if defined(DUK_USE_PACKED_TVAL) "p" #else "u" #endif #if defined(DUK_USE_FASTINT) "f" #endif " " /* Low memory options */ #if defined(DUK_USE_STRTAB_CHAIN) "c" /* chain */ #elif defined(DUK_USE_STRTAB_PROBE) "p" /* probe */ #else "?" #endif #if !defined(DUK_USE_HEAPPTR16) && !defined(DUK_DATAPTR16) && !defined(DUK_FUNCPTR16) "n" #endif #if defined(DUK_USE_HEAPPTR16) "h" #endif #if defined(DUK_USE_DATAPTR16) "d" #endif #if defined(DUK_USE_FUNCPTR16) "f" #endif #if defined(DUK_USE_REFCOUNT16) "R" #endif #if defined(DUK_USE_STRHASH16) "H" #endif #if defined(DUK_USE_STRLEN16) "S" #endif #if defined(DUK_USE_BUFLEN16) "B" #endif #if defined(DUK_USE_OBJSIZES16) "O" #endif #if defined(DUK_USE_LIGHTFUNC_BUILTINS) "L" #endif #if defined(DUK_USE_ROM_STRINGS) || defined(DUK_USE_ROM_OBJECTS) /* XXX: This won't be shown in practice now * because this code is not run when builtins * are in ROM. */ "Z" #endif " " /* Object property allocation layout */ #if defined(DUK_USE_HOBJECT_LAYOUT_1) "p1" #elif defined(DUK_USE_HOBJECT_LAYOUT_2) "p2" #elif defined(DUK_USE_HOBJECT_LAYOUT_3) "p3" #else "p?" #endif " " /* Alignment guarantee */ #if (DUK_USE_ALIGN_BY == 4) "a4" #elif (DUK_USE_ALIGN_BY == 8) "a8" #elif (DUK_USE_ALIGN_BY == 1) "a1" #else #error invalid DUK_USE_ALIGN_BY #endif " " /* Architecture, OS, and compiler strings */ DUK_USE_ARCH_STRING " " DUK_USE_OS_STRING " " DUK_USE_COMPILER_STRING); duk_xdef_prop_stridx(ctx, DUK_BIDX_DUKTAPE, DUK_STRIDX_ENV, DUK_PROPDESC_FLAGS_WC); /* * InitJS code - Ecmascript code evaluated from a built-in source * which provides e.g. backward compatibility. User can also provide * JS code to be evaluated at startup. */ #ifdef DUK_USE_BUILTIN_INITJS /* XXX: compression */ DUK_DD(DUK_DDPRINT("running built-in initjs")); duk_eval_string(ctx, (const char *) duk_initjs_data); /* initjs data is NUL terminated */ duk_pop(ctx); #endif /* DUK_USE_BUILTIN_INITJS */ #ifdef DUK_USE_USER_INITJS /* XXX: compression (as an option) */ DUK_DD(DUK_DDPRINT("running user initjs")); duk_eval_string_noresult(ctx, (const char *) DUK_USE_USER_INITJS); #endif /* DUK_USE_USER_INITJS */ /* * Since built-ins are not often extended, compact them. */ DUK_DD(DUK_DDPRINT("compact built-ins")); for (i = 0; i < DUK_NUM_ALL_BUILTINS; i++) { duk_hobject_compact_props(thr, duk_require_hobject(ctx, i)); } DUK_D(DUK_DPRINT("INITBUILTINS END")); #if defined(DUK_USE_DEBUG_LEVEL) && (DUK_USE_DEBUG_LEVEL >= 1) for (i = 0; i < DUK_NUM_ALL_BUILTINS; i++) { DUK_DD(DUK_DDPRINT("built-in object %ld after initialization and compacting: %!@iO", (long) i, (duk_heaphdr *) duk_require_hobject(ctx, i))); } #endif /* * Pop built-ins from stack: they are now INCREF'd and * reachable from the builtins[] array or indirectly * through builtins[]. */ duk_set_top(ctx, 0); DUK_ASSERT_TOP(ctx, 0); }
DUK_LOCAL void duk__print_hobject(duk__dprint_state *st, duk_hobject *h) { duk_fixedbuffer *fb = st->fb; duk_uint_fast32_t i; duk_tval *tv; duk_hstring *key; duk_bool_t first = 1; const char *brace1 = "{"; const char *brace2 = "}"; duk_bool_t pushed_loopstack = 0; if (duk_fb_is_full(fb)) { return; } duk__print_shared_heaphdr(st, &h->hdr); if (h && DUK_HOBJECT_HAS_ARRAY_PART(h)) { brace1 = "["; brace2 = "]"; } if (!h) { duk_fb_put_cstring(fb, "NULL"); goto finished; } if (st->depth >= st->depth_limit) { const char *subtype = "generic"; if (DUK_HOBJECT_IS_COMPFUNC(h)) { subtype = "compfunc"; } else if (DUK_HOBJECT_IS_NATFUNC(h)) { subtype = "natfunc"; } else if (DUK_HOBJECT_IS_THREAD(h)) { subtype = "thread"; } else if (DUK_HOBJECT_IS_BUFOBJ(h)) { subtype = "bufobj"; } else if (DUK_HOBJECT_IS_ARRAY(h)) { subtype = "array"; } duk_fb_sprintf(fb, "%sobject/%s %p%s", (const char *) brace1, subtype, (void *) h, (const char *) brace2); return; } for (i = 0; i < (duk_uint_fast32_t) st->loop_stack_index; i++) { if (st->loop_stack[i] == h) { duk_fb_sprintf(fb, "%sLOOP:%p%s", (const char *) brace1, (void *) h, (const char *) brace2); return; } } /* after this, return paths should 'goto finished' for decrement */ st->depth++; if (st->loop_stack_index >= st->loop_stack_limit) { duk_fb_sprintf(fb, "%sOUT-OF-LOOP-STACK%s", (const char *) brace1, (const char *) brace2); goto finished; } st->loop_stack[st->loop_stack_index++] = h; pushed_loopstack = 1; /* * Notation: double underscore used for internal properties which are not * stored in the property allocation (e.g. '__valstack'). */ duk_fb_put_cstring(fb, brace1); if (DUK_HOBJECT_GET_PROPS(NULL, h)) { duk_uint32_t a_limit; a_limit = DUK_HOBJECT_GET_ASIZE(h); if (st->internal) { /* dump all allocated entries, unused entries print as 'unused', * note that these may extend beyond current 'length' and look * a bit funny. */ } else { /* leave out trailing 'unused' elements */ while (a_limit > 0) { tv = DUK_HOBJECT_A_GET_VALUE_PTR(NULL, h, a_limit - 1); if (!DUK_TVAL_IS_UNUSED(tv)) { break; } a_limit--; } } for (i = 0; i < a_limit; i++) { tv = DUK_HOBJECT_A_GET_VALUE_PTR(NULL, h, i); DUK__COMMA(); duk__print_tval(st, tv); } for (i = 0; i < DUK_HOBJECT_GET_ENEXT(h); i++) { key = DUK_HOBJECT_E_GET_KEY(NULL, h, i); if (!key) { continue; } if (!st->internal && DUK_HSTRING_HAS_HIDDEN(key)) { continue; } DUK__COMMA(); duk__print_hstring(st, key, 0); duk_fb_put_byte(fb, (duk_uint8_t) DUK_ASC_COLON); if (DUK_HOBJECT_E_SLOT_IS_ACCESSOR(NULL, h, i)) { duk_fb_sprintf(fb, "[get:%p,set:%p]", (void *) DUK_HOBJECT_E_GET_VALUE(NULL, h, i).a.get, (void *) DUK_HOBJECT_E_GET_VALUE(NULL, h, i).a.set); } else { tv = &DUK_HOBJECT_E_GET_VALUE(NULL, h, i).v; duk__print_tval(st, tv); } if (st->heavy) { duk_fb_sprintf(fb, "<%02lx>", (unsigned long) DUK_HOBJECT_E_GET_FLAGS(NULL, h, i)); } } } if (st->internal) { if (DUK_HOBJECT_HAS_EXTENSIBLE(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__extensible:true"); } if (DUK_HOBJECT_HAS_CONSTRUCTABLE(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__constructable:true"); } if (DUK_HOBJECT_HAS_BOUNDFUNC(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__boundfunc:true"); } if (DUK_HOBJECT_HAS_COMPFUNC(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__compfunc:true"); } if (DUK_HOBJECT_HAS_NATFUNC(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__natfunc:true"); } if (DUK_HOBJECT_HAS_BUFOBJ(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__bufobj:true"); } if (DUK_HOBJECT_HAS_THREAD(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__thread:true"); } if (DUK_HOBJECT_HAS_ARRAY_PART(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__array_part:true"); } if (DUK_HOBJECT_HAS_STRICT(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__strict:true"); } if (DUK_HOBJECT_HAS_NOTAIL(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__notail:true"); } if (DUK_HOBJECT_HAS_NEWENV(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__newenv:true"); } if (DUK_HOBJECT_HAS_NAMEBINDING(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__namebinding:true"); } if (DUK_HOBJECT_HAS_CREATEARGS(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__createargs:true"); } if (DUK_HOBJECT_HAS_ENVRECCLOSED(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__envrecclosed:true"); } if (DUK_HOBJECT_HAS_EXOTIC_ARRAY(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__exotic_array:true"); } if (DUK_HOBJECT_HAS_EXOTIC_STRINGOBJ(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__exotic_stringobj:true"); } if (DUK_HOBJECT_HAS_EXOTIC_ARGUMENTS(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__exotic_arguments:true"); } if (DUK_HOBJECT_HAS_EXOTIC_DUKFUNC(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__exotic_dukfunc:true"); } if (DUK_HOBJECT_IS_BUFOBJ(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__exotic_bufobj:true"); } if (DUK_HOBJECT_HAS_EXOTIC_PROXYOBJ(h)) { DUK__COMMA(); duk_fb_sprintf(fb, "__exotic_proxyobj:true"); } } if (st->internal && DUK_HOBJECT_IS_ARRAY(h)) { duk_harray *a = (duk_harray *) h; DUK__COMMA(); duk_fb_sprintf(fb, "__length:%ld", (long) a->length); DUK__COMMA(); duk_fb_sprintf(fb, "__length_nonwritable:%ld", (long) a->length_nonwritable); } else if (st->internal && DUK_HOBJECT_IS_COMPFUNC(h)) { duk_hcompfunc *f = (duk_hcompfunc *) h; DUK__COMMA(); duk_fb_put_cstring(fb, "__data:"); duk__print_hbuffer(st, (duk_hbuffer *) DUK_HCOMPFUNC_GET_DATA(NULL, f)); DUK__COMMA(); duk_fb_put_cstring(fb, "__lexenv:"); duk__print_hobject(st, DUK_HCOMPFUNC_GET_LEXENV(NULL, f)); DUK__COMMA(); duk_fb_put_cstring(fb, "__varenv:"); duk__print_hobject(st, DUK_HCOMPFUNC_GET_VARENV(NULL, f)); DUK__COMMA(); duk_fb_sprintf(fb, "__nregs:%ld", (long) f->nregs); DUK__COMMA(); duk_fb_sprintf(fb, "__nargs:%ld", (long) f->nargs); #if defined(DUK_USE_DEBUGGER_SUPPORT) DUK__COMMA(); duk_fb_sprintf(fb, "__start_line:%ld", (long) f->start_line); DUK__COMMA(); duk_fb_sprintf(fb, "__end_line:%ld", (long) f->end_line); #endif DUK__COMMA(); duk_fb_put_cstring(fb, "__data:"); duk__print_hbuffer(st, (duk_hbuffer *) DUK_HCOMPFUNC_GET_DATA(NULL, f)); } else if (st->internal && DUK_HOBJECT_IS_NATFUNC(h)) { duk_hnatfunc *f = (duk_hnatfunc *) h; DUK__COMMA(); duk_fb_sprintf(fb, "__func:"); duk_fb_put_funcptr(fb, (duk_uint8_t *) &f->func, sizeof(f->func)); DUK__COMMA(); duk_fb_sprintf(fb, "__nargs:%ld", (long) f->nargs); DUK__COMMA(); duk_fb_sprintf(fb, "__magic:%ld", (long) f->magic); #if defined(DUK_USE_BUFFEROBJECT_SUPPORT) } else if (st->internal && DUK_HOBJECT_IS_BUFOBJ(h)) { duk_hbufobj *b = (duk_hbufobj *) h; DUK__COMMA(); duk_fb_sprintf(fb, "__buf:"); duk__print_hbuffer(st, (duk_hbuffer *) b->buf); DUK__COMMA(); duk_fb_sprintf(fb, "__buf_prop:"); duk__print_hobject(st, (duk_hobject *) b->buf_prop); DUK__COMMA(); duk_fb_sprintf(fb, "__offset:%ld", (long) b->offset); DUK__COMMA(); duk_fb_sprintf(fb, "__length:%ld", (long) b->length); DUK__COMMA(); duk_fb_sprintf(fb, "__shift:%ld", (long) b->shift); DUK__COMMA(); duk_fb_sprintf(fb, "__elemtype:%ld", (long) b->elem_type); #endif } else if (st->internal && DUK_HOBJECT_IS_THREAD(h)) { duk_hthread *t = (duk_hthread *) h; DUK__COMMA(); duk_fb_sprintf(fb, "__strict:%ld", (long) t->strict); DUK__COMMA(); duk_fb_sprintf(fb, "__state:%ld", (long) t->state); DUK__COMMA(); duk_fb_sprintf(fb, "__unused1:%ld", (long) t->unused1); DUK__COMMA(); duk_fb_sprintf(fb, "__unused2:%ld", (long) t->unused2); DUK__COMMA(); duk_fb_sprintf(fb, "__valstack_max:%ld", (long) t->valstack_max); DUK__COMMA(); duk_fb_sprintf(fb, "__callstack_max:%ld", (long) t->callstack_max); DUK__COMMA(); duk_fb_sprintf(fb, "__catchstack_max:%ld", (long) t->catchstack_max); DUK__COMMA(); duk_fb_sprintf(fb, "__valstack:%p", (void *) t->valstack); DUK__COMMA(); duk_fb_sprintf(fb, "__valstack_end:%p/%ld", (void *) t->valstack_end, (long) (t->valstack_end - t->valstack)); DUK__COMMA(); duk_fb_sprintf(fb, "__valstack_bottom:%p/%ld", (void *) t->valstack_bottom, (long) (t->valstack_bottom - t->valstack)); DUK__COMMA(); duk_fb_sprintf(fb, "__valstack_top:%p/%ld", (void *) t->valstack_top, (long) (t->valstack_top - t->valstack)); DUK__COMMA(); duk_fb_sprintf(fb, "__catchstack:%p", (void *) t->catchstack); DUK__COMMA(); duk_fb_sprintf(fb, "__catchstack_size:%ld", (long) t->catchstack_size); DUK__COMMA(); duk_fb_sprintf(fb, "__catchstack_top:%ld", (long) t->catchstack_top); DUK__COMMA(); duk_fb_sprintf(fb, "__resumer:"); duk__print_hobject(st, (duk_hobject *) t->resumer); /* XXX: print built-ins array? */ } #if defined(DUK_USE_REFERENCE_COUNTING) if (st->internal) { DUK__COMMA(); duk_fb_sprintf(fb, "__refcount:%lu", (unsigned long) DUK_HEAPHDR_GET_REFCOUNT((duk_heaphdr *) h)); } #endif if (st->internal) { DUK__COMMA(); duk_fb_sprintf(fb, "__class:%ld", (long) DUK_HOBJECT_GET_CLASS_NUMBER(h)); } DUK__COMMA(); duk_fb_sprintf(fb, "__heapptr:%p", (void *) h); /* own pointer */ /* prototype should be last, for readability */ if (DUK_HOBJECT_GET_PROTOTYPE(NULL, h)) { if (st->follow_proto) { DUK__COMMA(); duk_fb_put_cstring(fb, "__prototype:"); duk__print_hobject(st, DUK_HOBJECT_GET_PROTOTYPE(NULL, h)); } else { DUK__COMMA(); duk_fb_sprintf(fb, "__prototype:%p", (void *) DUK_HOBJECT_GET_PROTOTYPE(NULL, h)); } } duk_fb_put_cstring(fb, brace2); #if defined(DUK_USE_HOBJECT_HASH_PART) if (st->heavy && DUK_HOBJECT_GET_HSIZE(h) > 0) { duk_fb_put_byte(fb, (duk_uint8_t) DUK_ASC_LANGLE); for (i = 0; i < DUK_HOBJECT_GET_HSIZE(h); i++) { duk_uint_t h_idx = DUK_HOBJECT_H_GET_INDEX(NULL, h, i); if (i > 0) { duk_fb_put_byte(fb, (duk_uint8_t) DUK_ASC_COMMA); } if (h_idx == DUK_HOBJECT_HASHIDX_UNUSED) { duk_fb_sprintf(fb, "u"); } else if (h_idx == DUK_HOBJECT_HASHIDX_DELETED) { duk_fb_sprintf(fb, "d"); } else { duk_fb_sprintf(fb, "%ld", (long) h_idx); } } duk_fb_put_byte(fb, (duk_uint8_t) DUK_ASC_RANGLE); } #endif finished: st->depth--; if (pushed_loopstack) { st->loop_stack_index--; st->loop_stack[st->loop_stack_index] = NULL; } }